Home / 10,115.99-15,181.83-7,017.74

Finding the Fourth Proportional to 10,115.99, 15,181.83 and 7,017.74

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Solution

The fourth proportional to 10,115.99, 15,181.83 and 7,017.74 is: 10,532.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.99 : 15,181.83 = 7,017.74 : x
  2. Step 2: Convert to fraction form
    10,115.99/15,181.83 = 7,017.74/x
  3. Step 3: Cross multiply
    10,115.99x = 15,181.83 × 7,017.74
  4. Step 4: Simplify right side
    10,115.99x = 106,542,116.69
  5. Step 5: Solve for x
    x = 106,542,116.69/10,115.99
  6. Step 6: Final answer
    x = 10,532.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.